Spring and mattress construction



March 28, 1933. E. A. OEHRL SPRING AND MA TTRESS CONSTRUCTION Filed April 28. 1950 2 Sheets-Sheet 1 March 28, 1933. E. A. OEHRL 1 SPRING AND MATTRESS CONSTRUCTION Filed April 28, 1930 2 Sheets-Sheet 2 3...: A n g v v EF w V Lag:

Patented Mar. 28, 1933 ERNEST A. OEHBL, OF GRAND RAPIDS, MICHIGAN SPRING AND MATTRESS CONSTRUCTION Application filed April 28,

This invention relates to a spring mattress construction, and is more particularly concerned with a novel construction whereby simple and economicalbuilding of a spring mattress and supporting structure therefor is attained.

The invention and the many novel features thereof are fully described in the following description, taken in connection with the accompanying drawings, in which,

Fig. 1 is a perspective view of the construction of my invention.

Fig. 2 is a longitudinal vertical section taken approximately through the center of Fig. 1 and illustrating-in part the manner in which the upper member is separable from the lower member of the construction.

Fig. 3 is a fragmentary vertical section, substantially on the plane of line 33 of Fig. 4.

Fig. 4 is a horizontal section, substantially on the plane of line 4-4 of Fig. 2.

Fig. 5 is a fragmentary enlarged elevation of one end of the structure showing the manner in which the upper and lower members thereof are releasably locked together, and

Figs. 6 and 7 are longitudinal sections showing the invention in a slightly different form, the parts being separated in Fig. 6 and assembled in Fig. 7

Like reference characters refer to like parts in the different figures of the drawings.

In the construction illustrated, a rectangular base frame 1 having parallel sides and parallel ends is used, above and a short distance from the outer edges of which a vertical rectangular frame 2 is secured having spaced parallel sides and ends, the outer sides of which are upwardly and inwardly tapered or inclined as indicated at 3. As shown in Fig. 2, a horizontal cross bar 4;, extends between the sides of this frame a short distance from one end thereof.

A plurality of coiled springs 5 are located within the vertical frame 2, as shown, between one end and the cross bar 4, though in other forms the springs may fill the entire frame. These springs are supported by any suitable supporting means at their lower ends 1930. Serial No. 447,845.

such as cords, wires or the like, indicated at 6, and may be tied together and to the frame by upper cords 6 so as to be properly positioned and located therein.

An upper member is associated with the lower frame structure and spring assembly described, including a rectangular frame 7 having parallel vertical sides and ends each at its inner side and lower portion being downwardly and outwardly tapered or inclined indicated at 8, so as to seat against the inclined outer sides?) of the lower frame members 2. A horizontal fabric support 9 which may comprise two sheets of burlap with padding between has downturned edges tacked or nailed to the inner sidesof the upper frame 7 a short distance below its upper edges. Upholstery padding 10 is supported on this member 9 and covered at its upper side with other suitable upholstering 1.1 which includes a fabric cover 12 extending downwardly at its side edges along the outer sides of the frame 7 and permanently secured thereto in any suitable manner. When the upper frame. member is slid downwardly over the lowerframe the inclined surfaces 8 are wedged against the outer sides of the members 2 and thus the two frames are fastened together. Also, the lower edge of the upper frame abuts the top of the base frame 1 when the parts are assembled.

The springs 5 are of sufficient depth as to be engaged by the underside of the fabric support 9 when the frames are assembled. See Fig. 2.

At one end portion of the upper frame 7 a tiltable head rest may be mounted including a lower support 18 hinged at 14 to the sides of the frame 7 with coiled springs 15 covered by upholstering 16 above the support. This support may be raised and loweredto different inclined positions.

At the underside of the support 13 are depending ears 17 between which a. curved bar 18, notched at its inner side, is pivotally mounted and suspended, extending downwardly and at its lower end having a pin 19 therethrough. The bar 18 passes between the sides of a U-shaped stirrup 20'mounted horizontally on a block extending inwardly from an end of the outer frame 7 A plate 21 is pivotally mounted near one end on trunnions on the sides of the stirrup 20 and has an opening through which the bar 18 passes. The inner side of the stirrup member 20 is cut away at its lower portion and provided with an upwardly and inwardly inclined wedging surface 20a- (Fig. 3), while the free edge of the plate 21 has a cooperating wedging surface 22.

From the ends of the outer frame 7 of this structure a number of headed pins 23 project being secured to plates 24 permanently attached to said frame. A locking member 25, of the form shown in Fig. 5, has an eye at one end surrounding a pivot bolt or pin 26 permanently secured to one of the end members of the horizontal or base frame 1. There is one of these locking members of the angular form illustrated associated with each of the headed pins 23 to be turned to engage therewith, as shown in Fig. 5, or the same may be turned to a position to completely disengage from the pins to release the upper frame structure, or to permit the installation of the upper frame structure on the lower structure, the locking members 25 thereafter being turned to locking position with the pins 23 as in Figs. 1 and 5.

In Figs. 6 and 7 the same invention is illustrated with the head rest not used. That is, the springs 5 extend the full length and width of the lower frame 2 and the upper frame 7 engages thereover and is connected by means of the locking members 25 and headed pins 28 the same as previously described. The upholstery over the upper frame 7 may be modified to some degree by using a plurality of layers of upholstery 9a, 10a and lie with suitable fabric lining and divisions While the fabric covering 12 will be used the same as previously to extend downwardly over for connection to the outer sides of the frame 7.

The construction described is a very simple, economical and practical construction of mattress which is durable and with which a full complement of coiled supporting springs may be used and easily assembled. The head rest when raised to any position is automatically held therein by the plate 21 engaging in a notch of the bar 18. To return the head rest to its lower position it is lifted to its extreme upper portion, whereupon the pin 19 engages with the plate 21 and lifts it up into a wedging engagement of the surfaces 22 and 21a whereupon the head rest may be lowered. And when it is lowered the ears 1'? engage against the upper side of the plate 21 and release the same from its wedging engagement with the inclined surface 20a.

The invention is defined in the appended claim and is to be considered comprehensive of all forms of structure coming within its scope.

I claim:

In a construction having a frame and a head rest pivoted thereto the combination of means for supporting the head rest at different positions comprising, a depending bar pivotally connected to the underside of the head rest and having a pin through its lower end, a stirrup secured to and extending inwardly from the adjacent end of the frame between the sides of which the bar passes, and a retaining plate pivotally mounted on said stirrup having an opening through which the bar snugly passes, said stirrup and retaining plate being provided with cooperating wedging surfaces, said pin abutting against the retaining plate when the head rest is elevated to a predetermined position whereby the said wedging surfaces come into engagement and thus hold the said plate in its upper position.

In testimony whereof I affix my signature.

ERPEST A. OEHRL. 

